Method of making hinges for doors and the like



53w 8, 1938. E, s. MCCALLUM 2,135,723

METHOD OF MAKING HINGES FOR DOORS AND THE LIKE Filed Oct. 7, 1956 Patented Nov. 8, 1938 PATENT OFFICE METHOD OF MAKING HINGES FOR DOORS AND THE LIKE Eric Sydney McCallum, Hurstville, New South Wales, Australia Application October '7, 1936, Serial No. 104,444 In Australia June 24, 1936 1 Claim.

This invention relates to hinges for doors, windows and the like, and provides improvements directed to effecting economy of time and material and to provide in the course of construction,

5 means whereby lubrication of the completed hinge is facilitated.

According hereto the tongues from which are formed the eyes of the two parts of the hinge through which the pivot pin passes, are, coincidentally with the operation of stamping them out from sheet metal, impressed with shallow recesses and punched with holes communicating therewith, in such manner that when the hinge is assembled, the concavities of the recesses are towards the pivot pin, and form receptacles for lubricant which is passed into them through the said holes or from a channel hereinafter described.

A mode of carrying my invention into eiTect is shown in the accompanying drawing where- Fig. 1 is a plan.

Fig. 2, a perspective view.

Fig. 3, a sectional elevation on the plane AA,

5 Fig. 2, and

Fig. 4, a sectional plan. Fig. 1 illustrates a manner of stamping out, impressing and punching with holes, the wings I and 2 of the hinge from a strip 3 of metal which generally, as in common practice, will be in form of a coil carried upon a mandril, and drawn therefrom by mechanism associated with the press.

The Wings and the tongues 4 upon wing I, and similar tongues 5 upon wing 2, are formed by stamping out the metal along lines 6, 1 and 8, the tongues 4 being subsequently bent to form cylindrical eyes 9, see Figs. 2, 3, and 4, which fit between similar eyes l0 formed from the tongues 5.

A pivot pin ll passes through all the eyes in the usual manner.

Concurrently with the stamping out of the wings, the surfaces of the tongues which, when the eyes are formed, will be innermost, are impressed with a series of shallow recesses l2, each of which, as shown in Fig. 1, overlaps one of the tongues 4 and one of the tongues 5. 'Holes l3 communicating with the recesses are simultaneously punched as also are the usual screw holes I4.

A shallow recess l5 impressed in the edge of each of the outer tongues 4, forms, when the tongue is bent into an eye, a receiving channel I! for lubricant which passes therefrom into the adjacent recess.

The recesses are so shallow that the outer surfaces of the eyes is not affected and consequently no obstruction is presented to the turning of the hinge upon its pivot in the usual way.

As shown in Figs. 3 and 4 the formation of the tongues 4 and 5 into eyes, produces from. the shallow recesses in the inner faces thereof a series of receptacles for lubricant which is passed thereinto in the manner described.

The invention has been illustrated and described as applied to butt hinges but it will be understood that the lubricating device is applicable to hinges generally and that in the case of hinges made from cast metal the recesses may be produced by the mould.

When considered advisable the surface of the pivot pin may be grooved to convey lubricant from one recess to those below it.

I claim:

In the manufacture of butt hinges, stamping out, at one operation, the two wings of the hinge and the tongues from which the eyes are formed, and simultaneously therewith impressing the 35 surface of the tongues with shallow recesses, and punching holes through the tongues whereby when the eyes are formed, shallow receptacles for lubricant are produced and the holes led thereinto.

ERIC SYDNEY MCCALLUM 

